Disk-Halo Interplay in Galaxy Evolution

Details Disk-Halo Interplay in Galaxy Evolution Disk-Halo Interplay in Galaxy Evolution

2007-10-02

arxiv.org/abs/0710.0630v1

Astronomy and Astrophysics

Astrophysics

13 pages, 6 figures; to appear in the Proceedings of the conference `Pathways through an Eclectic Universe', J.H. Knapen, T.J.

Scientific paper

Some aspects of disk-halo interactions for models of in and out of equilibrium disk galaxies are reviewed. Specifically, we focus on disk-halo resonant interaction without and in the presence of a gas component. Another issue is the disk growth within an assembling triaxial dark matter halo. We argue that while the triaxiality is the result of the merger process and the radial orbit instability, it is the developing chaos that damps the first generation of bars and washes out the halo prolateness. This chaos is triggered by the gravitational quadrupole interaction(s) in the system and supported by a number of other processes which are characteristic of baryons.

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